我总是收到这个错误。我认为查询没问题。有什么问题?
“引起:android.database.sqlite.SQLiteException:靠近“to”:语法错误:,编译时:创建表消息(_id整数,msgdesc文本,日期时间戳不为空,由整数创建不为空,整数不为空); "
这是我的代码:
public class ContactListDB extends SQLiteOpenHelper {
private static final int DATABASE_VERSION = 2;
private static final String DATABASE_NAME = "MobileMerch";
// Database creation SQL statement
private static final String CREATE_MERCH = "create table Merchendiser" +
"(_id integer primary key, name text not null,surname text not null,username text not null);";
// Database creation SQL statement
private static final String CREATE_MESSAGES = "create table Messages" +
"(_id integer , msgdesc text ,date timestamp not null, createdby integer not null, to integer not null);";
public ContactListDB(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
public void onCreate(SQLiteDatabase db) {
db.execSQL(CREATE_MERCH);
db.execSQL(CREATE_MESSAGES);
}